| Name: | Shamim Haque |
| Affiliation: | IISER Bhopal |
| Conference ID : | ASI2024_606 |
| Title : | Effects of Smoothness of Phase Transition in Binary Neutron Star Mergers |
| Authors : | Shamim Haque, Sagnik Chatterjee, Kamal Krishna Nath, Rana Nandi, Ritam Mallick |
| Authors Affiliation: | Shamim Haque, Sagnik Chatterjee, Kamal Krishna Nath, Ritam Mallick, Indian Institute of Science Education and Research Bhopal, Bhopal - 462066, India
Rana Nandi, Shiv Nadar Institution of Eminence, Gautam Buddha Nagar - 201314, India |
| Mode of Presentation: | Poster |
| Abstract Category : | High Energy Phenomena, Fundamental Physics and Astronomy |
| Abstract : | Quantum chromodynamics predicts that at high enough temperature/density, hadronic matter (HM) deconfines to quark-gluon matter. It is conjectured that the deconfinement transition from HM to quark matter (QM) takes place at an intermediate density range (a few times nuclear matter density). However, there is no ab initio calculation, nor are there any earth-based experiments. The only naturally present laboratories to probe matter at such densities are the neutron stars (NSs).
We performed the full 3D numerical relativity simulations of binary NS merger systems. We studied the effects of the smoothness of phase transition (PT) by probing the stellar properties and gravitational wave spectra. For our study, we constructed a hybrid equation of state (EoS) using the piecewise polytrope method. This EoS has the hadronic degrees of freedom at low density, a first-order phase transition at an intermediate density, followed by pure quark matter EoS at higher densities. We imposed the replacement interpolation method (RIM) to smoothen the discontinuity of the first-order phase transition using a parameter called the smoothness parameter. The RIM technique ensures our constructed EoSs follow the thermodynamic stability condition. |
